If the different between a man and is son age is 30.how old will they be in 5 years time if their ration is 3:1. ​

The length and a quarter of the width of a rectangle add up to 7 in, while the length and the width add up to 10 in. what are the rectangle's length and width?

In the football stadium, there are 18 empty seats out of 360 total seats. (1a) write the ratio of empty seats to total seats as a fraction in simplest form. (1b) then explain its meaning.

You decide instead to take the train there. the train will take 135 minutes. convert this into hours and minutes.